To define an XA resource (XAR) for an enterprise server region

Open the ESCWA Administration page, and then select the enterprise server region that references the transactional data file from the left pane.
In the right pane, click General > XA Resources.
Click NEW.
Specify the details of the XAR:

ID

Specify an XA resource manager (XAR) ID, used internally to identify a particular XA configuration, and must be unique within the enterprise server region. This ID is used by JES-initiated jobs. See Executing TSO Commands in Batch Mode (IDAEFT01), and Planning and Designing XARs for more information. Mandatory.

Name

Specify the name by which the XAR is known. Mandatory.

Module

Specify the location of the RM switch module executable file (.dll) that contains the entry point that returns the xa_switch_t structure to the enterprise server. We strongly recommend that you include the full path to the executable file. Mandatory.

Enabled

Check this to enable the XAR. It is checked by default.

Reconnection attempts

Type or select the number of reconnection attempts to make following an initial connection error.

Open string

Specify the string that is passed to the resource manager on the xa_open() call. It usually contains at least the database name, and often the user ID and password credentials for connecting to the database. The contents of this string are database-specific.
Where the RM switch module supports dynamic registration, and the database vendor requires the name of the module that provides the ax_reg function, you should specify casaxlib.

Close string

The string that is passed to the XAR on the xa_close() call. To find out whether or not you need to supply Close string, see your database vendor's documentation.

Description

Specify an optional text description of the XAR definition.

Important: For more information on the syntax for Open string, see the xa_open string topic for your database type, listed below.
Click Add.

Note: You cannot add an XAR until all the mandatory fields have values. If you add an XAR while the region is running, you can connect to it as soon as the XAR is enabled.